Home / 837,121.12-1,256,470.80-305,156.32

Finding the Fourth Proportional to 837,121.12, 1,256,470.80 and 305,156.32

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Solution

The fourth proportional to 837,121.12, 1,256,470.80 and 305,156.32 is: 458,022.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,121.12 : 1,256,470.80 = 305,156.32 : x
  2. Step 2: Convert to fraction form
    837,121.12/1,256,470.80 = 305,156.32/x
  3. Step 3: Cross multiply
    837,121.12x = 1,256,470.80 × 305,156.32
  4. Step 4: Simplify right side
    837,121.12x = 383,420,005,515.46
  5. Step 5: Solve for x
    x = 383,420,005,515.46/837,121.12
  6. Step 6: Final answer
    x = 458,022.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.